diff --git a/.clang-tidy b/.clang-tidy
index aaa1e61..a9af2f7 100644
--- a/.clang-tidy
+++ b/.clang-tidy
@@ -1,4 +1,3 @@
-# -*- mode: conf; fill-column: 100; -*-
 # Written for clang-tidy 14.
 
 ---
@@ -46,6 +45,9 @@ CheckOptions:   # ↓ Clashes with static private member prefix. (static int _va
                 - { key: readability-identifier-naming.EnumCase,              value: lower_case }
                 - { key: readability-identifier-naming.FunctionCase,          value: lower_case }
                 - { key: readability-identifier-naming.ParameterCase,         value: lower_case }
+
+                - { key: readability-identifier-length.MinimumVariableNameLength, value: 2      }
 ...
 
-# vim: set et tw=100:
+# -*- mode: yaml; fill-column: 100; -*-
+# vim: set fenc=utf-8 tw=100 et ft=yaml: